A client is experiencing tachycardia and tremors. Lab values show elevated Free T4 and low thyroid stimulating hormone (TSH). Which diagnostic study will help the practitioner differentiate Graves' disease from other forms of hyperthyroidism?

Levothyroxine replacement test

Radioactive iodine uptake (RAIU) test

Adrenocorticotropic hormone (ACTH) stimulation test

Subtotal thyroidectomy

Answer and Explanation

The Correct Answer is B

A. Levothyroxine replacement test: This test is used to assess the thyroid's response to synthetic thyroid hormone and is not used to differentiate types of hyperthyroidism.
B. Radioactive iodine uptake (RAIU) test: This test measures the thyroid gland's ability to absorb iodine, which helps differentiate Graves' disease (characterized by increased uptake) from other forms of hyperthyroidism, such as thyroiditis (which may show decreased uptake).
C. Adrenocorticotropic hormone (ACTH) stimulation test: This test is used to evaluate adrenal function and is not relevant for diagnosing or differentiating forms of hyperthyroidism.
D. Subtotal thyroidectomy: This is a surgical procedure rather than a diagnostic test and would not be used to differentiate between types of hyperthyroidism.

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Correct Answer is D

Explanation

A. Ataxic dysarthria: This is not a common complication associated with Cushing syndrome. It is more related to neurological disorders affecting speech and coordination.
B. Hypotension: Cushing syndrome typically causes hypertension rather than hypotension due to fluid retention and increased vascular resistance.
C. Hyperkalemia: Cushing syndrome is associated with hypokalemia rather than hyperkalemia due to the effects of excess cortisol on potassium levels.
D. Bone fracture: Cushing syndrome increases the risk of osteoporosis and bone fractures due to prolonged exposure to high levels of cortisol, which affects bone density and strength.

A. Pain 7/10 at the surgical site B. Hyperglycemia C. Blood pressure 92/50 D. Sodium 152 mEq/L

Correct Answer is C

Explanation

A. Pain 7/10 at the surgical site: This level of pain is expected following major surgery, such as a bilateral adrenalectomy, and does not specifically indicate an Addisonian crisis.
B. Hyperglycemia: Although hyperglycemia can be associated with stress or corticosteroid treatment, it is not a hallmark of Addisonian crisis. Addisonian crisis is more related to adrenal insufficiency rather than hyperglycemia.
C. Blood pressure 92/50: Low blood pressure is a critical sign of an Addisonian crisis. This condition results from severe adrenal insufficiency where the body cannot maintain adequate blood pressure.
D. Sodium 152 mEq/L: High sodium levels are not characteristic of an Addisonian crisis. Addisonian crisis typically leads to hyponatremia (low sodium levels) due to inadequate aldosterone production.

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A client is experiencing tachycardia and tremors. Lab values show elevated Free T4 and low thyroid stimulating hormone (TSH). Which diagnostic study will help the practitioner differentiate Graves' disease from other forms of hyperthyroidism?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who has developed Cushing syndrome due to long-term corticosteroid therapy to treat multiple sclerosis. The nurse understands that Cushing syndrome puts the client at increased risk for which complication?

Correct Answer is D

Explanation

The patient is returning to the unit after undergoing a bilateral adrenalectomy. Which clinical manifestation would indicate that the client is experiencing an Addisonian crisis?

Correct Answer is C

Explanation

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